package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduCourse;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.CourseInfoVo;
import com.atguigu.eduservice.entity.vo.CoursePublishVo;
import com.atguigu.eduservice.entity.vo.CourseQuery;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduCourseService;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 课程 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2020-03-02
 */
@RestController
@RequestMapping("/eduservice/course")
@CrossOrigin
public class EduCourseController {

    @Autowired
    private EduCourseService courseService;

    // 所有课程列表 基本实现
    @GetMapping("courseList")
    public R getCourseList(){
        List<EduCourse> list = courseService.list(null);
        return R.ok().data("list",list);
    }

    //  分页查询讲师列表
    @GetMapping("pageCourseList/{current}/{limit}")
    public  R pageCourseList(@PathVariable long current,
                             @PathVariable long limit){
        //创建page对象
        Page<EduCourse> pageCourse = new Page<>(current,limit);
        try {
            int i = 10/0;
        }catch(Exception e) {
            //执行自定义异常
            throw new GuliException(20001,"执行了自定义异常处理....");
        }
        //调用方法实现分页
        //调用方法时候，底层封装，把分页所有数据封装到pageCourse对象里面
        courseService.page(pageCourse,null);
        long total = pageCourse.getTotal();//总记录数
        List<EduCourse> records = pageCourse.getRecords();//数据list集合

        return R.ok().data("total",total).data("rows",records);
    }

    //4 条件查询带分页的方法
    @PostMapping("pageCourseCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,
                                  @RequestBody(required = false) CourseQuery courseQuery) {
        //创建page对象
        Page<EduCourse> pageCourse = new Page<>(current,limit);

        //构建条件
        QueryWrapper<EduCourse> wrapper = new QueryWrapper<>();
        // 多条件组合查询
        // mybatis学过 动态sql
        String title = courseQuery.getTitle();
        String status = courseQuery.getStatus();
        String begin = courseQuery.getBegin();
        String end = courseQuery.getEnd();
        //判断条件值是否为空，如果不为空拼接条件
        if(!StringUtils.isEmpty(title)) {
            //构建条件
            wrapper.like("title",title);
        }
        if(!StringUtils.isEmpty(status)) {
            wrapper.eq("status",status);
        }
        if(!StringUtils.isEmpty(begin)) {
            wrapper.ge("gmt_create",begin);
        }
        if(!StringUtils.isEmpty(end)) {
            wrapper.le("gmt_create",end);
        }

        //排序
        wrapper.orderByDesc("gmt_create");

        //调用方法实现条件查询分页
        courseService.page(pageCourse,wrapper);

        long total = pageCourse.getTotal();//总记录数
        List<EduCourse> records = pageCourse.getRecords(); //数据list集合
        return R.ok().data("total",total).data("rows",records);
    }




    //添加课程基本信息的方法
    @PostMapping("addCourseInfo")
    public R addCourseInfo(@RequestBody CourseInfoVo courseInfoVo) {
        //返回添加之后课程id，为了后面添加大纲使用
        String id = courseService.saveCourseInfo(courseInfoVo);
        return R.ok().data("courseId",id);
    }

    //根据课程id查询课程基本信息
    @GetMapping("getCourseInfo/{courseId}")
    public R getCourseInfo(@PathVariable String courseId) {
        CourseInfoVo courseInfoVo = courseService.getCourseInfo(courseId);
        return R.ok().data("courseInfoVo",courseInfoVo);
    }

    //修改课程信息
    @PostMapping("updateCourseInfo")
    public R updateCourseInfo(@RequestBody CourseInfoVo courseInfoVo) {
        courseService.updateCourseInfo(courseInfoVo);
        return R.ok();
    }

    //根据课程id查询课程确认信息
    @GetMapping("getPublishCourseInfo/{id}")
    public R getPublishCourseInfo(@PathVariable String id) {
        CoursePublishVo coursePublishVo = courseService.publishCourseInfo(id);
        return R.ok().data("publishCourse",coursePublishVo);
    }

    // 课程最终发布
    //修改课程状态
    @PostMapping("publishCourse/{id}")
    public R publishCourse(@PathVariable String id){
        EduCourse eduCourse = new EduCourse();
        eduCourse.setId(id);
        eduCourse.setStatus("Normal"); // 设置课程最终发布状态
        courseService.updateById(eduCourse);
        return R.ok();
    }

    // 课程删除
    /**
     * 删除时把视频，小节，章节，描述，课程本身都删除
     * */
    @DeleteMapping("{courseId}")
    public R deleteCourse(@PathVariable String courseId){
        courseService.removeCourse(courseId);
        return R.ok();
    }




}

